/*
 * Tencent is pleased to support the open source community by making Angel available.
 *
 * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/Apache-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package com.tencent.angel.sona.psf.embedding.bad;

import com.tencent.angel.PartitionKey;
import com.tencent.angel.ml.matrix.psf.update.base.PartitionUpdateParam;
import com.tencent.angel.ml.matrix.psf.update.base.UpdateParam;
import com.tencent.angel.psagent.PSAgentContext;

import java.util.ArrayList;
import java.util.List;

public class W2VRandomParam extends UpdateParam {

  int dimension;

  public W2VRandomParam(int matrixId, int dimension) {
    super(matrixId);
    this.dimension = dimension;
  }

  @Override
  public List<PartitionUpdateParam> split() {
    List<PartitionUpdateParam> params = new ArrayList<>();
    List<PartitionKey> pkeys = PSAgentContext.get().getMatrixMetaManager().getPartitions(matrixId);
    for (PartitionKey pkey: pkeys) {
      params.add(new W2VRandomPartitionParam(matrixId,
        pkey,
        dimension));
    }
    return params;
  }
}
